• Title/Summary/Keyword: brain infarction

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The Neuroprotective Activities of the Sam-Hwang-Sa-Shim-Tang in the Transient Ischemic Model in Rats.

  • Kim, Min-Sun;Hwang, Young-Sun;Ryu, Jong-Hoon
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 2001.11a
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    • pp.85-85
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    • 2001
  • Sam-Hwang-Sa-Shim-Tang(SHSST), a traditional Chinese medicine, composed of Rhei rhizoma, Scutellaria radix, and Coptidis rhizoma were used in the several disease including hypertension, constipation, and hemorrhage. In the present study, we investigated the neuroprotective effects of SHSST and its ingredients on the ischemia/ reperfusion-induced brain injury was evaluated in the rat brain. Ischemia was induced by intraluminal occlusion of the right middle cerebral artery for 120 min and reperfusion was continued for 22 h. SHSST (450 mg/kg), Rhei rhii oma (100 mg/kg), Coptidis rhizoma (100 mg/kg), and Scutellaria radik (100 mg/kg) were orally administered twice, promptly prior to reperfusion and 2 h after the repefusion. Total infarction volume in the ipsilateral hemisphere of ischemia/ reperfusion rats was significantly lowed by the treatments of SHSST (39.2%) and Scutellaria radix (66.5%). However, Coptidis rhizoma did not show any significant effects on the total infarct volume. The inhibiting effect of Scutellaria radix on the total infarct volume was more potent than that of SHSST. In addition, Scutellaria radix significantly inhibited myeloperoxidase (MPO) activity, an index of neutrophil infiltration in ischemic brain tissue. However, there was marked mismatch between total infarct volume and MPO activity in the Scutellaria radix-treated rats. Our findings suggest that Scutellaria radix as an ingredient of SHSST plays a protective role in ischemia-induced brain injury by inhibiting neutrophil infiltration. The effects of Rhei rhizoma on transient brain ischemia-induced neuronal injury are under study.

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CT of Late Complication of Central Nervous System after Radiation Therapy of Brain Tumors (뇌종양의 방사선치료후 발생한 만성변화의 CT소견)

  • Hong, Seong-Eon;Cho, Chong-Hee;Ahn, Chi-Yul
    • Radiation Oncology Journal
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    • v.2 no.2
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    • pp.287-297
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    • 1984
  • The normal intracranial structures are relatively resistant to therapeutic radiation, but may react adversely in a variety of ways, and the damage to nerve tissue may be slow in making its appearance, and once damage has occured the patient recovers slowly and incompletly. Therefore, it is important to consider the possibility of either recurrent tumor or late adverse effect in any patient who has had radiotherapy. The determination o( rnorphological/pathological correlation is very important to the therapeutic radiologist who uses CT scans to define a treatment volume, as well as to the clinician who wishes to explain the patient's clinical state in terms of regress, progression, persistence, or recurrence of tumor or radiation-induced edema or necrosis, The authors are obtained as following results ; 1. The field size(whole CNS, large, intermediate, small field) was variable according to the location and extension of tumor and histopathologic diagnosis, and the tatal tumor dose was 4,000 to 6,000 rads except one of recurred case of 9,100 rads. The duration of follow up CT scan was from 3 months to 5 year 10 months. 2, The histopathologic diagnosis of 9cases were glioblastoma multiforme(3 cases), pineal tumor (3), oligodendroglioma (1), cystic astrocytoma (1), pituitary adenoma (1) and their adverse effects after radiation therapy were brain atrophy (4 cases) , radiation necrosis(2), tumor recurrence with or without calcification (2), radiation·induced infarction (1). 3. The recurrent symptoms after radiation therapy of brain tumor were not always the results of regrowth of neoplasm, but may represent late change of irradiated brain. 4. It must be need that we always consider the accurate treatment planning and proper treatment method to reduce undesirable late adverse effects in treatment of brain tumors.

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Methanol Extract of Cassia mimosoides var. nomame and Its Ethyl Acetate Fraction Attenuate Brain Damage by Inhibition of Apoptosis in a Rat Model of Ischemia-Reperfusion

  • Kim, Ki-Hong;Lee, Jong-Won
    • Preventive Nutrition and Food Science
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    • v.15 no.4
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    • pp.255-261
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    • 2010
  • Ischemic stroke, a major cause of death and disability worldwide, is caused by occlusion of cerebral arteries that, coupled with or without reperfusion, results in prolonged ischemia (hypoxia and hypoglycemia) and, ultimately, brain damage. In this study, we examined whether methanol extract of the whole plant of Cassia mimosoides var. nomame Makino that grows naturally in Korea, as well as Japan and China, and some of its fractions obtained by partitioning with organic solvents could protect human hepatocellular carcinoma cells (HepG2) under hypoxic condition by inhibiting apoptosis. We also investigated if these extracts could attenuate brain damage in a rat model of 2 hr of ischemia, generated by middle cerebral artery occlusion, and 22 hr of reperfusion. The whole extract ($100{\mu}g$/mL) maintained the cell number at more than half of that initially plated, even after 24 hr of cell culture under hypoxic condition (3% $O_2$). In the absence of the whole extract, almost all of the cells were dead by this time point. This improvement of cell viability came from a delay of apoptosis, which was confirmed by observing the timing of the formation of a DNA ladder when assessed by gel electrophoresis. Of fractions soluble in hexane, ethyl acetate (EA), butanol and water, EA extracts were selected for the animal experiments, as they improved cell viability at the lowest concentration ($10{\mu}g$/mL). The whole extract (200 mg/kg) and EA extract (10 and 20 mg/kg) significantly reduced infarct size, a measure of brain damage, by 34.7, 33.8 and 45.2.0%, respectively, when assessed by 2,3,5-triphenyl tetrazolium chloride staining. The results suggest that intake of Cassia mimosoides var. nomame Makino might be beneficial for preventing ischemic stroke through inhibition of brain cell apoptosis.

Improvement of medical law regulations for telemedicine services (원격의료서비스를 위한 의료법 관련 규제 개선방향)

  • Choi, Jung-Ah;Jung, Yong Gyu
    • The Journal of the Convergence on Culture Technology
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    • v.1 no.2
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    • pp.85-89
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    • 2015
  • It has been reported that cerebral disease is the most leading to death as a single disease even though next to cancer in the most important cause of death in the country. Even if patients maintain a life without death, it will have to suffer from side effects such as hemiplegia and language disorders. In this paper, the symptoms and treatment of cerebral infarction cases are described through the medical dramas (The Third Hospital, The Brain) and movie (Amur). Even if there is the same stroke each drama or movie, depending on the previous history or current physical condition of the patient knew which treatment the law is different.

The Effects of Sunghyangjunggi-san and Gwackhyangjunggi-san Extracts on Cerebral Ischemia Following the MCA Occlusion in Rat (흰쥐의 중대뇌동맥 결찰로 유발된 뇌허혈에서 성향정기산과 곽향정기산이 신경세포에 미치는 효과)

  • 김선영;이원철
    • The Journal of Korean Medicine
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    • v.22 no.4
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    • pp.142-150
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    • 2001
  • Objectives : The purpose of this investigation is to evaluate and compare the effects of Sunghyangjunggi-san (SH) and Gwackhyangjunggi-san (GH) extracts on reperfusion following the MCA occlusion in rats. Methods : To evaluate the effect of Sunghyangjunggi-san (SH) and Gwackhyangjunggi-san (GH) extracts on reperfusion following the MCA occlusion, the volume of cerebral infarction and edema were measured and the change of the CA1 pyramidal neurons in the hippocampus were investigated by light microscopy. Results : 1. The infarction volume of the control group was 23.6%, that of the GH group was 23.7%, and that of the SH group was 18.5%. 2. The brain edema volume of the control group increased by 16% compared with that of the normal group, that of the GH group increased by 14%, and that of the SH group increased by 9%. 3. The number of surviving pyramidal neurons in the CAI area of the hippocampus was investigated under light microscopy. In the control group, few surviving pyramidal neurons excisted (mean 6.4) and similarly in the GH group (mean 8.5), but in the SH group, the number of surviving pyramidal neurons was significantly higher, to the mean 18.4. Conclusions : According to the above results, in regard to the damage of neurons following cerebral ischemia, the GH group has little effect of the protection of neurons compared to the control group, but the SH group has a remarkable effect.

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Effect of Tooth-Cut Induced Dental Malocclusion on Mouse Model of Ischemic Stroke (생쥐의 하악 치아 절단으로 인한 부정교합이 뇌경색에 미치는 영향)

  • Lee, Young-Jun;Lee, Byoungho;Cho, Suin
    • Journal of TMJ Balancing Medicine
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    • v.9 no.1
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    • pp.4-11
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    • 2019
  • Objectives: Although intraoral balancing appliance therapy has been used effective to several diseases, verification studies through cerebral diseases are poorly reported so far. Thus we investigated the effect of tooth-cut induced dental malocclusion against mouse model of ischemic stroke. Methods: Tooth-cut and 90 min middle cerebral artery occlusion (MCAO) were loaded to C57BL/6 male mice, and total infarct area, neurological deficit scores (NDS), histological change of hippocampal region were observed. Production levels of reactive oxygen species (ROS) and inducible nitric oxide synthase (iNOS) in cerebral tissue were also measured. Results: The longer the tooth-cut period, the greater the area of cerebral infarction caused by MCAO, and NDS began to increase as the tooth was cut, and the results were more negative when MCAO was loaded. Histological change of hippocampal cells was significant when tooth-cut was maintained for 7 days. Those damages were thought to depend on the generation of ROS and iNOS in brain tissue. Conclusions: Since tooth-cut increased total area of cerebral infarction due to MCAO in mice, it is able to be confirmed that anomaly of the temporomandibular occlusion can affect neurological diseases.

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The literatual study on the cerebral vascular dementia in oriental and occidental medicine (뇌혈관성(뇌혈관성) 치매(痴?)에 대(對)한 동서의학적(東西醫學的) 고찰(考察))

  • Ann, Tak-Weon;Hong, Seog;Kim, Hee-Chul
    • Korean Journal of Oriental Medicine
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    • v.2 no.1
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    • pp.40-70
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    • 1996
  • In the literatual study on the cerebral vascular dementia, the results were as follows : 1. Cerebral vascular dementia is so called apoplectic dementia, because it almost occurs after apoplexy, the attack rate has gradually increased by increase of life, so it exert a harmful influence to geriatric diseases. 2. The etiological factors are summarized on deficiency in the heart, kidney, liver(心, 腎, 肝虛), pathogenic wind(豊) pathogenic fire(火) phlegm(痰) and stagnated blood(瘀血) in the oriental medicine, and multiple cerebral infarction, cerebral anemia, decrease of cerebral vascular flow are etiological factors in the occidental medicine. 3. The region of infarction and attack of cerebral vascular dementia have a close connection, and generally the cerebral vascular dementia easily occur in injury of white matter of brain. 4. Symptoms of cerebral vascular dementia are dysphasia, walking disorder, hemiplegia, sensory paralysis, disturbance of memory, judgement, calculation, emotion incontinence, speech impediment, silence or talkative, lower thinking ability and depersonalization, and symptoms are aggravated by stage. 5. Therapeutic herb medicines are Palpungsan(八風散), Baepungsan(排風散), Jinsaanshinhwan(辰砂安神丸), Sabacksan(四白散), Kanghwalyupungsan(姜活愈風散), Woohwangchungshimhwan(牛黃淸心丸), and they are used to dispelling pathogenic wind(祛風), soothe the nerves(安神), dispel pathogenic heat from lung, nourish the blood(淸肺養血).

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Three Cases of Tremor in Stroke Sequela Patients (뇌졸중 후유증으로 나타난 진전 증상 치험 3례)

  • Ryu Hyun-Hee;Yoon Hyo-Jin;Yoon Ji-Won;Lee Seoung-Geun;Lee Gi-Sang;Son Ji-Young
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.5
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    • pp.1450-1455
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    • 2005
  • Tremor is an most common abnormal movements disease which is to-and-fro shaking. It is caused by problems -with the nerves supplying certain muscles. It can affect the whole body or just certain areas. Parkinson's disease, Brain disease like injury of Frontal lobe, Cerebellum and Brainstem, drug and alcohol caused this symptom. It could be occured by physiological and Essential cause. In this paper, authors report three cases who showed tremor after Cerebral infarction. And we suggest that 'Ssanghwa-Tang' should be helpful for tremor patients.

The Protective Effects of Woowhangcheongshim-won(WCW) on Middle Cerebral Artery Occlusion (우황청심원이 뇌허혈을 유발시킨 흰쥐의 신경전달물질에 미치는 영향)

  • 박치상;이은주;박원미;김미려;조정숙;김영호;양재하;박창국
    • The Journal of Korean Medicine
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    • v.21 no.1
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    • pp.11-19
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    • 2000
  • The present study was carried out to investigate the effects of Woowhangcheongshim-won(WCW) on the extracellular concentrations of amino acid neurotransmitters(glutamate, aspartate, GABA, glycine, taurine, alanine, and tyrosine) and organic acid (lactate and pyruvate) in striatum and cerebral infarction volume in rats subjected to permanent focal cerebral ischemia induced by 2 hours of middle cerebral artery occlusion(MCAO), using intracerebral microdialysis as the sampling technique, Microdialysis probes were inserted into the lateral part of the caudate-putamen 2 hours before the experiment and microdialyzates were collected at 20min intervals and analyzed by high performance liquid chromatography, WCW significantly decreased the infarction volume with reducing focal cerebral ischemia-induced increase of extracellular glutamate, asparate, and tyrosine. On the other hand, the increase of GABA and taurine was enhanced after treatment of WCW in the ischemia-induced rats, These results suggest that WCW can produce a neuroprotective effect against cerebral ischemia by regulating extracellular excitatory and inhibitory amino acid levels in relation to the concept of excitotoxicity in brain ischemia.

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Histopathologic Studies on the Brain and Lymphoid Organs in Hog Cholera I. Clinical and Pathological Observation in Hog Cholera (Hog Cholera 병돈(病豚)의 뇌(腦) 및 임파장기(淋巴臟器)에 관한 병리조직학적(病理組織學的) 연구(硏究) I. 임상(臨床) 및 병리해부학적(病理解剖學的) 관찰(觀察))

  • Kwak, Soo-Dong;Lee, Cha-Soo
    • Korean Journal of Veterinary Research
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    • v.22 no.1
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    • pp.31-36
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    • 1982
  • This study was taken to clarify the clinical signs and macroscopical lesions of pigs naturally infected with hog cholera. The clinical and macroscopical observation on the natural cases of hog cholera and experimental cases inoculated with ALD Virus and isolated virus strains were carried out. The results obtained are as follow; In clinical inspection of the natural cases, diarrhea (73.1%) blotching of ear (50.0%), staggering (42.3%), erythema of skin (40.0%), constipation (38.5%), conjunctivitis (32.7%) and dyspnea (30.8%) were observed. Dyspnea, constipation and erythema of skin were observed mainly in the experimental cases, however, staggering and conjunctivitis in pigs infected with ALD virus were found and convulsion and hemorrhage of skin of pigs infected with isolated virus were seen, respectively. The gross lesions of natural cases were hemorrhage of lymph node (82.5%), enteritis and hemorrhage of large intestine (65.0%), splenic infarction (57.5%), pneumonia (55.0%), gastritis and hemorrhage (52.5%), cardiac hemorrhage (40.0%) and renal petechiation (37.5%), while in the experimental cases, hemorrhage of lymph node, pneumonia, gastritis and hemorrhage, enteritis and hemorrhage of laryge intestine and splenic infarction were seen mainly.

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